The new IE 6 from Sennheiser represents the fusion of time-honored performance and cutting edge flair. Using a cushy seal to block out competing environmental noise, the in-ear fit of the IE 6 allows you to listen at a safer volume level without missing the details of your music. Their compact, dynamic drivers feature neodymium magnets for ultra efficient and extremely durable performance- even at lower gain stages. This means that they travel well, fit comfortably and reproduce bass with minimal over modulation.